The wildly anticipated film is doing something no other movie—superhero or otherwise—has ever done: It’s bringing more than 60 different characters from multiple movie franchise arcs into one huge battle royale.

Directors Anthony and Joe Russo have previewed the mayhem, telling SlashFilm that Infinity War will “change the MCU more profoundly than any movie has yet.”

For example: There are at least 30 characters in a single scene, Johansson told Stephen Colbert during a visit to The Late Show. And while she didn’t reveal if it was a battle scene or a mix of good guys and bad guys, it should be a wild ride either way.